[INFO] cloning repository https://github.com/waelkarman/asynchronous-messages-exchanger-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/waelkarman/asynchronous-messages-exchanger-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaelkarman%2Fasynchronous-messages-exchanger-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaelkarman%2Fasynchronous-messages-exchanger-rust'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaelkarman%2Fasynchronous-messages-exchanger-rust/objects/pack: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/waelkarman/asynchronous-messages-exchanger-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/waelkarman/asynchronous-messages-exchanger-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaelkarman%2Fasynchronous-messages-exchanger-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaelkarman%2Fasynchronous-messages-exchanger-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d93e1700bbbe7936ec74041468f0f9e1b39202d
[INFO] checking waelkarman/asynchronous-messages-exchanger-rust against master#9748d87dc70a9a6725c5dbd76ce29d04752b4f90 for pr-144156
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaelkarman%2Fasynchronous-messages-exchanger-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/waelkarman/asynchronous-messages-exchanger-rust
[INFO] finished tweaking git repo https://github.com/waelkarman/asynchronous-messages-exchanger-rust
[INFO] tweaked toml for git repo https://github.com/waelkarman/asynchronous-messages-exchanger-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/waelkarman/asynchronous-messages-exchanger-rust on toolchain 9748d87dc70a9a6725c5dbd76ce29d04752b4f90
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/waelkarman/asynchronous-messages-exchanger-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da905a4793d1fe80fe2488a6a5c9419fb99a513e4c4e6727657c5acc7668e05e
[INFO] running `Command { std: "docker" "start" "-a" "da905a4793d1fe80fe2488a6a5c9419fb99a513e4c4e6727657c5acc7668e05e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da905a4793d1fe80fe2488a6a5c9419fb99a513e4c4e6727657c5acc7668e05e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da905a4793d1fe80fe2488a6a5c9419fb99a513e4c4e6727657c5acc7668e05e", kill_on_drop: false }`
[INFO] [stdout] da905a4793d1fe80fe2488a6a5c9419fb99a513e4c4e6727657c5acc7668e05e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+9748d87dc70a9a6725c5dbd76ce29d04752b4f90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a23368d8ae786c53e841117d8a847390b9f495c25e87e61d2354b033bdd5fb1b
[INFO] running `Command { std: "docker" "start" "-a" "a23368d8ae786c53e841117d8a847390b9f495c25e87e61d2354b033bdd5fb1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking asynchronous_messages_exchanger_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `msg_t`
[INFO] [stdout]    --> src/bin/udp_server.rs:299:31
[INFO] [stdout]     |
[INFO] [stdout] 299 |                     let (seq, msg_t, msg) = msg_pack::msg_unpack(String::from(gen_msg.clone()));
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/bin/udp_server.rs:302:29
[INFO] [stdout]     |
[INFO] [stdout] 302 |                         let src = *self.src.lock().unwrap();
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_t`
[INFO] [stdout]    --> src/bin/udp_client.rs:289:31
[INFO] [stdout]     |
[INFO] [stdout] 289 |                     let (seq, msg_t, msg) = msg_pack::msg_unpack(String::from(gen_msg.clone()));
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bin/udp_server.rs:350:50
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn timer_launcher(&self, n: i32, index: i32, s:String) {
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bin/udp_client.rs:338:50
[INFO] [stdout]     |
[INFO] [stdout] 338 |     fn timer_launcher(&self, n: i32, index: i32, s:String) {
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_t`
[INFO] [stdout]    --> src/bin/udp_server.rs:299:31
[INFO] [stdout]     |
[INFO] [stdout] 299 |                     let (seq, msg_t, msg) = msg_pack::msg_unpack(String::from(gen_msg.clone()));
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/bin/udp_server.rs:302:29
[INFO] [stdout]     |
[INFO] [stdout] 302 |                         let src = *self.src.lock().unwrap();
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bin/udp_server.rs:350:50
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn timer_launcher(&self, n: i32, index: i32, s:String) {
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_t`
[INFO] [stdout]    --> src/bin/udp_client.rs:289:31
[INFO] [stdout]     |
[INFO] [stdout] 289 |                     let (seq, msg_t, msg) = msg_pack::msg_unpack(String::from(gen_msg.clone()));
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bin/udp_client.rs:338:50
[INFO] [stdout]     |
[INFO] [stdout] 338 |     fn timer_launcher(&self, n: i32, index: i32, s:String) {
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.59s
[INFO] running `Command { std: "docker" "inspect" "a23368d8ae786c53e841117d8a847390b9f495c25e87e61d2354b033bdd5fb1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a23368d8ae786c53e841117d8a847390b9f495c25e87e61d2354b033bdd5fb1b", kill_on_drop: false }`
[INFO] [stdout] a23368d8ae786c53e841117d8a847390b9f495c25e87e61d2354b033bdd5fb1b